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Genuine ETA 7750-445 Setting Lever Jumper, Made in Switzerland, brand new — the original factory spring-loaded positioning component for the ETA/Valjoux 7750 chronograph movement’s setting mechanism. Precisely engineered to apply spring tension that locks the setting lever into precise positional detents, the Setting Lever Jumper prevents unintended lever drift and ensures reliable crown and pusher position selection across all modes. An essential replacement part for restoring a faulty or fatigued setting lever jumper during movement service. Original ETA part — the professional’s choice for genuine setting mechanism restoration.
| Parameter | Value |
|---|---|
| Brand | ETA (Swatch Group) |
| Part Number | 7750-445 |
| Component | Setting Lever Jumper |
| Compatibility | ETA/Valjoux 7750 Chronograph Movement |
| Origin | Made in Switzerland |
| Type | Original Factory Part (Genuine ETA) |
| Function | Spring-loaded positioning and detent locking of the setting lever; prevents unintended lever drift |
| Packing | Original Packing |
| Condition | Brand New / Genuine ETA |
Q1: Is this a genuine ETA part?
A: Yes — this is a genuine ETA 7750-445 Setting Lever Jumper, Made in Switzerland, brand new. It is an original factory part from ETA (Swatch Group), the world’s leading movement manufacturer. Not a generic or replica part.
Q2: How do I confirm this part fits my movement?
A: Confirm your movement is an ETA/Valjoux 7750 chronograph. The part number 7750-445 is the specific Setting Lever Jumper for this movement. Common brand applications include: IWC Portugieser Chronograph, Omega Speedmaster (older 7750 variant), Tag Heuer Monaco, Breitling Navitimer, and many other chronographs using the Valjoux/ETA 7750 platform.
Q3: What does the Setting Lever Jumper do?
A: The Setting Lever Jumper is a spring-loaded positioning component in the setting mechanism. Its function is to provide spring tension that locks the setting lever into precise detent positions — the click-in positions you feel when pulling the crown out or selecting chronograph pusher modes. The jumper prevents the setting lever from drifting or moving unintentionally when the crown or pushers are in a given position. A worn jumper causes: loss of positive detent feel, the crown or pusher slipping out of position, or inconsistent position selection.
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